Example usage for javax.swing JTextField JTextField

Introduction

In this page you can find the example usage for javax.swing JTextField JTextField.

Prototype

public JTextField(int columns) 

Source Link

Document

Constructs a new empty TextField with the specified number of columns.

Usage

From source file:Main.java

public static void main(String[] args) {
    JFrame frame = new JFrame();

    String[] list = { "Hello 1", "Hello 2", "Hello 3", "Hello 4" };
    DefaultComboBoxModel<String> model = new DefaultComboBoxModel<>(list);
    JComboBox<String> comboBox = new JComboBox<>(model);
    frame.add(comboBox, BorderLayout.NORTH);

    final JTextField textField = new JTextField(30);
    frame.add(textField, BorderLayout.SOUTH);
    frame.add(new JLabel("Type something, then press enter", JLabel.CENTER));

    textField.addActionListener(ae -> {
        String text = textField.getText();
        model.addElement(text);/*  w  w w. j av a  2s .c o m*/
        comboBox.setSelectedItem(text);
        textField.setText("");

    });

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.pack();
    frame.setVisible(true);
}

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From source file:TextFieldExample.java

public static void main(String[] args) {
    try {//from ww  w  .j a  v a  2  s. co m
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception evt) {
    }

    JFrame f = new JFrame("Text Field Examples");
    f.getContentPane().setLayout(new FlowLayout());
    f.getContentPane().add(new JTextField("Text field 1"));
    f.getContentPane().add(new JTextField("Text field 2", 8));
    JTextField t = new JTextField("Text field 3", 8);
    t.setHorizontalAlignment(JTextField.RIGHT);
    f.getContentPane().add(t);
    t = new JTextField("Text field 4", 8);
    t.setHorizontalAlignment(JTextField.CENTER);
    f.getContentPane().add(t);
    f.getContentPane().add(new JTextField("Text field 5", 3));

    f.pack();
    f.setVisible(true);
}

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From source file:Main.java

public static void main(String[] args) {
    JFrame aWindow = new JFrame();
    aWindow.setBounds(200, 200, 200, 200);
    aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    Container content = aWindow.getContentPane();
    content.setLayout(new FlowLayout(FlowLayout.LEFT));
    content.add(new JButton("www.java2s.com"));
    content.add(new JLabel("www.java2s.com"));
    content.add(new JTextField("www.java2s.com"));
    aWindow.setVisible(true);/*w  w w.ja v a  2  s  .c o m*/
}

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From source file:GTKLookAndFeelDemo.java

public static void main(String[] args) {
    try {//from  w w  w  .j  a v a  2  s  . co  m
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel");
    } catch (Exception e) {
        e.printStackTrace();
    }
    JLabel label = new JLabel("Label");
    JTextField field = new JTextField("www.java2s.com!");
    JList list = new JList(new String[] { "A", "B", "C" });
    JScrollPane listPane = new JScrollPane(list);
    listPane.setPreferredSize(new Dimension(250, 100));

    JScrollPane treePane = new JScrollPane(new JTree());
    treePane.setPreferredSize(new Dimension(250, 100));
    JButton button = new JButton("Click me");

    JPanel cp = new JPanel();
    cp.add(label);
    cp.add(field);
    cp.add(listPane);
    cp.add(treePane);
    cp.add(button);

    JFrame frame = new JFrame();
    frame.setTitle("Windows Look and Feel Demo");
    frame.setPreferredSize(new Dimension(280, 300));
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(cp);
    frame.pack();
    frame.setVisible(true);

}

---

From source file:WindowsLookAndFeelDemo.java

public static void main(String[] args) {
    try {//from   w w w. java 2s  .c  om
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception e) {
        e.printStackTrace();
    }
    JLabel label = new JLabel("Label");
    JTextField field = new JTextField("www.java2s.com!");
    JList list = new JList(new String[] { "A", "B", "C" });
    JScrollPane listPane = new JScrollPane(list);
    listPane.setPreferredSize(new Dimension(250, 100));

    JScrollPane treePane = new JScrollPane(new JTree());
    treePane.setPreferredSize(new Dimension(250, 100));
    JButton button = new JButton("Click me");

    JPanel cp = new JPanel();
    cp.add(label);
    cp.add(field);
    cp.add(listPane);
    cp.add(treePane);
    cp.add(button);

    JFrame frame = new JFrame();
    frame.setTitle("Windows Look and Feel Demo");
    frame.setPreferredSize(new Dimension(280, 300));
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setContentPane(cp);
    frame.pack();
    frame.setVisible(true);

}

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From source file:JTextFieldLimit.java

public static void main(String[] argv) {

    JTextField textfield1 = new JTextField(15);
    textfield1.setDocument(new JTextFieldLimit(10));
}

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From source file:JPasswordFieldTest.java

public static void main(String[] args) {
    JFrame.setDefaultLookAndFeelDecorated(true);
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setTitle("JTextField Test");
    frame.setLayout(new GridLayout(2, 2));
    JLabel label = new JLabel("User Name:", SwingConstants.RIGHT);
    JLabel label2 = new JLabel("Password:", SwingConstants.RIGHT);
    JTextField userNameField = new JTextField(20);
    JPasswordField passwordField = new JPasswordField();
    frame.add(label);//from ww  w  .  j av a 2s  .  co  m
    frame.add(userNameField);
    frame.add(label2);
    frame.add(passwordField);
    frame.setSize(200, 70);
    frame.setVisible(true);
}

---

From source file:TextFieldViews.java

public static void main(String[] args) {
    try {/*from   w  w w.  j ava 2s .co m*/
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception evt) {
    }

    JFrame f = new JFrame("Text Field View");
    JTextField tf = new JTextField(32);
    tf.setText("That's one small step for man...");
    f.getContentPane().add(tf);
    f.pack();
    f.setVisible(true);

    ViewDisplayer.displayViews(tf, System.out);
}

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From source file:Main.java

public static void main(String... args) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JPanel contentPane = new JPanel();
    contentPane.setLayout(new FlowLayout(FlowLayout.LEFT, 5, 5));
    JTextField tfield1 = new JTextField(10);
    JTextField tfield2 = new JTextField(10);

    FocusListener tfieldListener = new FocusListener() {
        @Override//from   w  w w. jav  a2  s  . c  o m
        public void focusGained(FocusEvent fe) {
        }

        @Override
        public void focusLost(FocusEvent fe) {
            String num1 = tfield1.getText().trim();
            String num2 = tfield2.getText().trim();
            if (num1 == null || num1.equals(""))
                num1 = "0";
            if (num2 == null || num2.equals(""))
                num2 = "0";
            System.out.println(Integer.toString(Integer.parseInt(num1) + Integer.parseInt(num2)));
        }
    };

    tfield1.addFocusListener(tfieldListener);
    tfield2.addFocusListener(tfieldListener);

    ((AbstractDocument) tfield1.getDocument()).setDocumentFilter(new MyDocumentFilter());
    ((AbstractDocument) tfield2.getDocument()).setDocumentFilter(new MyDocumentFilter());

    contentPane.add(tfield1);
    contentPane.add(tfield2);

    frame.setContentPane(contentPane);
    frame.pack();
    frame.setLocationByPlatform(true);
    frame.setVisible(true);
}

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From source file:PassiveTextField1.java

public static void main(String[] args) {
    JFrame f = new JFrame("Passive Text Field");
    f.getContentPane().setLayout(new BoxLayout(f.getContentPane(), BoxLayout.Y_AXIS));
    final JTextField ptf = new JTextField(32);
    JTextField tf = new JTextField(32);
    JPanel p = new JPanel();
    JButton b = new JButton("OK");
    p.add(b);/*  ww  w  . j  ava 2s  . c  om*/
    f.getContentPane().add(ptf);
    f.getContentPane().add(tf);
    f.getContentPane().add(p);

    Keymap map = ptf.getKeymap(); // Gets the shared map
    KeyStroke key = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0);
    map.removeKeyStrokeBinding(key);

    ActionListener l = new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            System.out.println("Action event from a text field");
        }
    };
    ptf.addActionListener(l);
    tf.addActionListener(l);

    // Make the button the default button
    f.getRootPane().setDefaultButton(b);
    b.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            System.out.println("Content of text field: <" + ptf.getText() + ">");
        }
    });
    f.pack();
    f.setVisible(true);
}

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